UBUNTU-CVE-2020-26558
Bluetooth LE and BR/EDR secure pairing in Bluetooth Core Specification 2.1 through 5.2 may permit a nearby man-in-the-middle attacker to identify the Passkey used during pairing (in the Passkey authentication procedure) by reflection of the public key and the authentication evidence of the initiating device, potentially permitting this attacker to complete authenticated pairing with the responding device using the correct Passkey for the pairing session. The attack methodology determines the Passkey value one bit at a time.
02 / AFFECTED SOFTWARE
Affected packages
5 explicit affected versions
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57 explicit affected versions
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191 explicit affected versions
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30 explicit affected versions
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15 explicit affected versions
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69 explicit affected versions
3 explicit affected versions
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2 explicit affected versions
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26 explicit affected versions
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1 explicit affected versions
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2 explicit affected versions
1 explicit affected versions
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10 explicit affected versions
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44 explicit affected versions
16 explicit affected versions
1 explicit affected versions
15 explicit affected versions
38 explicit affected versions
9 explicit affected versions
112 explicit affected versions
21 explicit affected versions
47 explicit affected versions
4 explicit affected versions
77 explicit affected versions
54 explicit affected versions
3 explicit affected versions
13 explicit affected versions
45 explicit affected versions
20 explicit affected versions
43 explicit affected versions
1 explicit affected versions
90 explicit affected versions
92 explicit affected versions
12 explicit affected versions
23 explicit affected versions
4 explicit affected versions
10 explicit affected versions
1 explicit affected versions
1 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
Bluetooth LE and BR/EDR secure pairing in Bluetooth Core Specification 2.1 through 5.2 may permit a nearby man-in-the-middle attacker to identify the Passkey used during pairing (in the Passkey authentication procedure) by reflection of the public key and the authentication evidence of the initiating device, potentially permitting this attacker to complete authenticated pairing with the responding device using the correct Passkey for the pairing session. The attack methodology determines the Passkey value one bit at a time.
05 / REFERENCES
Further evidence
- https://kb.cert.org/vuls/id/799380
- https://ubuntu.com/security/CVE-2020-26558
- https://ubuntu.com/security/notices/USN-4989-1
- https://ubuntu.com/security/notices/USN-4989-2
- https://ubuntu.com/security/notices/USN-5017-1
- https://ubuntu.com/security/notices/USN-5018-1
- https://ubuntu.com/security/notices/USN-5046-1
- https://ubuntu.com/security/notices/USN-5050-1
- https://ubuntu.com/security/notices/USN-5299-1
- https://ubuntu.com/security/notices/USN-5343-1
- https://www.bluetooth.com/learn-about-bluetooth/key-attributes/bluetooth-security/passkey-entry/
- https://www.cve.org/CVERecord?id=CVE-2020-26558
- https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00517.html